Apparatus for making shaped articles



Oct. 30, 1934; Q J HETTEL 1,979,156

APPARATUS FOR MAKING SHAPED ARTICLES Filed Oct. 22. 1931 3 Sheets-Sheetl INVENTOR. CL/PPofiod/fs'rnm.

A TTORNEYS Oct. 30, 1934. c J. HETTEL 1,979,156

APPARATUS FOR MAKING SHAPED ARTICLES Filed 001:. 22. 1951 3 Sheets-Sheet2 INVENTOR.

CL/F'F'O/PD (L/IZTTE'L.

A TTORNEYS,

Oct. 30, 1934.

c. J. HETTEL 1,979,156

APPARATUS FOR MAKING SHAPED ARTICLES Filed Oct. 22. 1931 3 Sheets-Sheet3 INVENTOR. Cur/ om; Mz'rru.

BYWYW ATTORNEYS Patented Oct. 30, I934 PATENT OFFICE APPARATUS FORMAKING SHAPED ARTICLES Clifford J. Hettel, River Rouge, Mich, assignorto Detroit Wax Paper Company, Detroit, Mich, a corporation of Michigan 1Application October 22, 1931, Serial No. 570,412

4 Claims.

, paper, which result is due to'the cutting of the wax paper intosuitable sizes, and which waste comprises of small pieces which may beeither relatively large or small, or in strip form. The inventioncontemplates utilizing this waste mal5 terial and making articlestherefrom by subjecting a quantity of the wax paper to pressure, atwhich time the article may be given its final commercial shape. Whilethe invention is particularly useful for utilizing wax paper Waste it isnot limited to using only wax paper waste, as

the invention contemplates and may be employed connection with otherpaper or fibrous material.

In the accompanying drawings:

7 Fig. 1, is a view of an apparatus such as may be employed for thepurpose of carrying out the invention, the view showing some parts cutaway to illustrate some of the detailed construction. r

. Fig; 2is a viewlooking from the left hand side of Fig. 1 illustrating'a press or forming device with some parts in section. Fig. 3 manenlarged sectional view illustrating 'thearticle-forming mechanism. i

Fig. 4 is an enlarged view with some parts in section illustrating thearrangement of the apparatus whichmay be employed.

Fig. 5 is a side view of an article which-may be made in accordance withthe invention.

Fig. 6 is aperspective view thereof showing some parts in section. 1 Theparticular article of manufacture herein shown is a bearing plug orspool like device useful for plugging the ends of a roll of paper and I5 which may be provided with a central aperture "for fitting over aspindle or the like so as to form a bearing upon which the roll of papermay turn as the paper is drawn therefrom. Other articles of manufacturemay be made in accord- HF ance with the invention but this particular isreciprocated by means of a crank 29.

duit 2 for discharging into the hopper quantities of waste wax paper.Mounted within the hopper for rotation is an agitator which may besecured to the shaft 3, having radially extending arms 4 and 5 andequipped with paddles 6. Advantageously, there are four arms and fourpaddles. This agitator is rotated, and for this purpose the shaft 3 mayhave on one end a worm gear 7 with which meshes a worm 8 rotated by apulley 9. The pulley 9 is connected by a belt 10 to a pulley 11 forrotation with the operation of the press or forming device. This ismerely one way of rotating the agitator.

By referring to Fig. 4 it will be noted that at the bottom of hopper 1'there is a tubular like member 15 which is open at its top inside of thehopper and which projects from the hopper as shown. Positioned in thetubular member 15 is a feeding screw comprising a shaft 16 carrying afeeding screw formation 1'7. The shaft 16 at one end projects from thehopper, and secured thereto as by means of a key is a driven clutchmember 18. A driving clutch member 19, which may be in the form of apulley driven by belt 20 running over the pulley of the motor 21, isjournaled on a spindle 22 which may be carried by the end of the member16 so that the member 19 may rotate independently of the driven memberof the clutch 18 and the feed screw. A coil spring 23 is arranged tonormally urge the feed screw from right to left for which purpose itbacks up against an abutment 24 which may be carried by the end ofmember 16 and reacts upon the feed screw through the means of anadjusting nut 24 and lock nut 25 screw threaded upon the shaft 16. Thisspring holds the clutch members packed together so that the part 19drives the part 18. The clutch may be of friction type for which purposeone member may be provided with friction facing material. As shown,driving part 19 has friction facing material 19a.

The end of the tube 15 remote from the hopper communicates into afixture, which in the present instance, takes the form of a fitting of Tshape, as shown at 26. This T fixture underlies a plunger 27 of asuitable press. The frame of the press is illustrated at 28 and theplunger This crank is on shaft 30 rotated by gear wheel 31 meshing withgear 32 on drive shaft 33 which may be driven by a suitable belt runningover a pulley 34. Pulley 35 may be an idler pulley upon which the beltmay be shifted, while a flywheel is shown at 36. The plunger 2'? iscarried jecting from opposite sides of the stripper are studs 45 and 46which extend through the walls of the die 41, the walls having elongatedopenings 4'7 for this purpose. Mounted upon the bed plate on oppositesides of the die are inclined plane members which-may be in the form ofangle irons as shown in Fig. 3. These members are shown at 50 and51.respectively, and each has an inclined surface 52 designed to cooperatewith the studs 45 and 46.

Carried by the frame of the press is an arm 53 plvotally connected withthe frame, as at 54, and connected to slide 42 by means of a link'55. Acam slot 56 is in the arm, and the ram 37 carries a bracket 5'7 uponwhich is a roller 58 operating in the cam slot. As the ram reciprocatesthe roller and cam slot engagement causes the arm 53 to rock, and inturn to reciprocate the slide and die 'upon the work bed of the press. Achute 59 is located in close proximity to the work bed of the press, andfinished articles are designed to slide down this chute where they maybe collected in a suitable receptacle, as at 60. The die member 41 hasan extension 48 in the form of a little table, the purpose of which willpresently appear.

In the operation of the device the waste paper products are maintainedin the hopper by entering through the conduit 2, and theagit'ator 6keeps the waste products agitated and tendsto fill the tube of the screwfeed member at the bottom of the hopper. The screw feeds the materialout through the tube 15 into the fixture 26. This condition may existwhen the parts are in the'posit'ion substantially represented in Fig. 4and'the waste paper products are packed into the fixture 26 bythe screw.until thepr'e'ssure is sufiicient to shift the screw from left to rightagainst thespring 23. This separates the driven member of the clutch 18from the driving member of the clutch 19 and the rotation of the screwceases. As shown in Fig. 4, the clutch has been released and the paperproducts are packed into the fixture 26 and compacted therein againstthe extension or table 48. As the punch descends into the fixture 26 thedie moves in underneath the fixture 26 to the position shown in Fig. 1,whereuponthe waste paper compacted in the fixture is compressed as shownin-Fig. 2. The die moves in by the action of the roller 58 in the camslot 60. As the'punch raises this same action causes the die to move outfrom underneath the fixture 26 from the position shown in Fig. 1 tosubstantially the position shown in Fig. 4. During this time the studs45 and 46 ride up the inclined faces 52 so as to raise the stripper 44.Thisejects the finished product, as shown in Fig. 4. When the ram againdescends the finished product, which has been ejected, is merely knockedoffof its position as the die moves in underneath the fixture 26 andfalls'down the operation, and then its operation continues withsaid diebeing shiftable into alignment with out attention, the only thingnecessary being the maintaining of the hopper with the quantity ofmaterial therein. Preferably the speed of the agitator 6 is such as toinsure that suflicient material is agitated and caused to move intoengagement with the screwfeed so that enough material is fed to compactthe same into the fixture 26 upon each cycle of operation.

For making an article of manufacture which hollow, as shown herein, thepunch 27 may be hollow so that excess material may enter the same andmaypass out through an aperture 28. As the hollow punch moves down intothe die in compressing the material, the core 4'7 is received in thehollow punch as shown in Fig.

the roll of paper may be rotated as 'pieces'are drawn therefrom. s

The waste'paper particles which are used may be ground up intorelatively fine form especially where the waste products are relativelylarge pieces. The forming of the articles may be under sufficientpressure sothat the compressed material retains its shape incompressedform without utilizing a binding. However, it is with:-

in the invention to employ a binder, and binders which may be cited aresilicate of soda, or a binder of asphalt or phaltum base.

I claim:" 1. An apparatus for making articles from a material having anaspieces of .wax paper or the like comprising, a

plunger, a die for receiving and'shapin'g the wax paper by pressure ofthe plunger, means for reciprocating the plunger, means operating intimed relation withthe plunger for reciprocating the die in a path atright angles to. the

said fixture, and means carried-by the d'ie'for closing said openside'of the -fixture when said die is in disalignment withthe fixture, astripper in the die, means for moving the stripper relative to the dieas said die moves out of alignment to said fixture. A

2. An apparatus for making shaped articles from particles of wax papermaterial comprising, a hopper for the material, a tubular conveyorprojecting from the hopper, a feed screw for passing the material;through the. tubular conveyor, a hollow fixture on the 'endof thetubular conveyor having opposed openings which open in a direction atright angles 13017118 tubular conveyor, said feed screw being adapted tofeed the material into the fixture under pressure and withsubstantiallycontinuous action,

a plunger fitted into one o'peningof the fixture,

means for reciprocating the same, a single die movable into and out ofalignment .with the other opening of the fixture to receive andishapethe material under pressure of the plunger and a stripper efiective forejecting the shaped ma- 'terial from the die when'the same ;-is out oalignment with the fixture.

3. An apparatus for making shaped articles from particles of wax papermaterial comprising, a hopper for the material, a tubular conveyorprojecting from the hopper, a feed screw for passing the materialthrough the tubular conveyor, a hollow fixture on the end of the tubularconveyor having opposed openings which open in a direction at rightangles to the tubular conveyor, said feed screw being adapted to feedthe material into the fixture under pressure with substantiallycontinuous action, a plunger fitted into one opening of the fixture,means for reciprocating the same, a die member positioned in alignmentwith the other opening of the fixture upon movement of the plunger intothe fixture and adapted to receive and shape the ma- ,terial underpressure, means for reciprocating the die member into and out ofalignment with the fixture, means carried by the die member for coveringthe opening of the fixture whereby shaped material may be removed fromthe die member when it is out of alignment with the fixture and when thesame is out of alignment therewith whereby the fixture remainssubstantially closed at all times.

4. An apparatus for making shaped articles from particles of wax papermaterial comprising, a hopper for the material, a tubular conveyorprojecting from the hopper, a feed screw for passing the materialthrough the tubular conveyor, a hollow fixture on the end of the tubularconveyor having opposed openings which open in a direction at rightangles to the tubular conveyor, said feed screw being adapted to feedthe material into the fixture under pressure, a plunger fitted into oneopening of the fixture, means for reciprocating the same, a die memberpositioned in alignment with said other opening of the fixture uponmovement of the plunger into the fixture and adapted to receive andshape the material under pressure of the plunger, means forreciprocating the die member into and out of alignment with the fixture,means carried by the die member for covering the opening of the fixturewhen the die is out of alignment with the fixture whereby the fixtureremains substantially closed at all times, a stripper and meansoperating the stripper incident to movement of the die out of alignmentwith the fixture for ejecting a shaped article from the die.

CLIFFORD J. HETTEL.

CERTIFICATE or CORRECTION.

Patent No. 1,979,156. October 30, 1934.

CLIFFORD J. HETTEL.

It" is herehy certified that errorappears in the printed specificationof the above numbered patent requiring correction as follows: Page 3,lines 19, 20, 21 and 22, claim 3, strike out the words "whereby shapedmaterial may be removed from the die member when it is out of alignmentwith the fixture and" and insert the same after "fixture," in line 18,of said claim; and that the said Letters Patent should be read with thiscorrection therein that the same may conlorm to the record of the casein the Patent Office. Signed and i'eal'ed this 5th day of February, A.D. 1935.

Leslie Frazer (Seal) Y Acting Commissioner of Patents.

